Slope -Intercept
What is the slope in the equation y=4x-2?
4
Solve: x + 7 = 15
x=8
Solve: 3x + 4 = 19
x=5
Find the slope between points (2, 1) and (6, 5).
4/4 or 1
If a shape is slid without turning or flipping, what transformation is it?
translation
What is the y-intercept in the equation y=-3x+7?
7
Solve: m – 9 = 3
Solve: 2y – 5 = 13
y=9
A line rises 3 units and runs 1 unit. What is the slope?
3/1 or 3
Reflect the point (6, –3) across the y-axis
(-6,-3)
Write the equation of a line with slope 2 and y-intercept –5.
y=2x-5
Solve: 4k = 28
k=7
Solve: (1/2)n + 6 = 10
n=8
Find the slope between (–4, 2) and (–1, 8).
2
Translate the point (–1, 4) right 5 units. What is the new coordinate?
(4, 4)
A line has a slope of –1 and passes through (0, 4). What is its equation?
y=-1x+4
Solve: p ÷ 6 = 5
p=30
5a – 2 = 23
a=5
A horizontal line has what slope?
0
A point moves from (3, 2) to (3, –2). What type of transformation is this?
A reflection across the x-axis
Rewrite this equation in slope-intercept form: 3y = 9x + 12.
y=3x+4
Solve: –3z = 12
z=-4
–4k + 7 = –9
k=4
A vertical line has what slope?
Undefined
Rotate the point (2, 0) 90° clockwise around the origin.
(0, –2)